Home / 75,210.68-103,791.02-43,379.70

Finding the Fourth Proportional to 75,210.68, 103,791.02 and 43,379.70

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Solution

The fourth proportional to 75,210.68, 103,791.02 and 43,379.70 is: 59,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,210.68 : 103,791.02 = 43,379.70 : x
  2. Step 2: Convert to fraction form
    75,210.68/103,791.02 = 43,379.70/x
  3. Step 3: Cross multiply
    75,210.68x = 103,791.02 × 43,379.70
  4. Step 4: Simplify right side
    75,210.68x = 4,502,423,093.40
  5. Step 5: Solve for x
    x = 4,502,423,093.40/75,210.68
  6. Step 6: Final answer
    x = 59,864.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.